Inclusive and multiplicity dependent production of electrons from heavy-flavour hadron decays in pp and p-Pb collisions
(2023) In Journal of High Energy Physics 2023(8).- Abstract
- Measurements of the production of electrons from heavy-flavour hadron decays in pp collisions at s = 13 TeV at midrapidity with the ALICE detector are presented down to a transverse momentum (p T) of 0.2 GeV/c and up to p T = 35 GeV/c, which is the largest momentum range probed for inclusive electron measurements in ALICE. In p-Pb collisions, the production cross section and the nuclear modification factor of electrons from heavy-flavour hadron decays are measured in the p T range 0.5 < p T < 26 GeV/c at sNN = 8.16 TeV. The nuclear modification factor is found to be consistent with unity within the statistical and systematic uncertainties. In both collision systems, first measurements of the yields of electrons from heavy-flavour... (More)
- Measurements of the production of electrons from heavy-flavour hadron decays in pp collisions at s = 13 TeV at midrapidity with the ALICE detector are presented down to a transverse momentum (p T) of 0.2 GeV/c and up to p T = 35 GeV/c, which is the largest momentum range probed for inclusive electron measurements in ALICE. In p-Pb collisions, the production cross section and the nuclear modification factor of electrons from heavy-flavour hadron decays are measured in the p T range 0.5 < p T < 26 GeV/c at sNN = 8.16 TeV. The nuclear modification factor is found to be consistent with unity within the statistical and systematic uncertainties. In both collision systems, first measurements of the yields of electrons from heavy-flavour hadron decays in different multiplicity intervals normalised to the multiplicity-integrated yield (self-normalised yield) at midrapidity are reported as a function of the self-normalised charged-particle multiplicity estimated at midrapidity. The self-normalised yields in pp and p-Pb collisions grow faster than linear with the self-normalised multiplicity. A strong p T dependence is observed in pp collisions, where the yield of high-p T electrons increases faster as a function of multiplicity than the one of low-p T electrons. The measurement in p-Pb collisions shows no p T dependence within uncertainties. The self-normalised yields in pp and p-Pb collisions are compared with measurements of other heavy-flavour, light-flavour, and strange particles, and with Monte Carlo simulations. [Figure not available: see fulltext.] © 2023, The Author(s). (Less)
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- publishing date
- 2023
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- Contribution to journal
- publication status
- published
- subject
- keywords
- Hadron-Hadron Scattering
- in
- Journal of High Energy Physics
- volume
- 2023
- issue
- 8
- article number
- 6
- publisher
- Springer
- external identifiers
-
- scopus:85167613143
- ISSN
- 1029-8479
- DOI
- 10.1007/JHEP08(2023)006
- language
- English
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- yes
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- 99981671-4b67-4b18-a813-e2bf88dddda6
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- 2023-12-20 14:34:14
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@article{99981671-4b67-4b18-a813-e2bf88dddda6, abstract = {{Measurements of the production of electrons from heavy-flavour hadron decays in pp collisions at s = 13 TeV at midrapidity with the ALICE detector are presented down to a transverse momentum (p T) of 0.2 GeV/c and up to p T = 35 GeV/c, which is the largest momentum range probed for inclusive electron measurements in ALICE. In p-Pb collisions, the production cross section and the nuclear modification factor of electrons from heavy-flavour hadron decays are measured in the p T range 0.5 < p T < 26 GeV/c at sNN = 8.16 TeV. The nuclear modification factor is found to be consistent with unity within the statistical and systematic uncertainties. In both collision systems, first measurements of the yields of electrons from heavy-flavour hadron decays in different multiplicity intervals normalised to the multiplicity-integrated yield (self-normalised yield) at midrapidity are reported as a function of the self-normalised charged-particle multiplicity estimated at midrapidity. The self-normalised yields in pp and p-Pb collisions grow faster than linear with the self-normalised multiplicity. A strong p T dependence is observed in pp collisions, where the yield of high-p T electrons increases faster as a function of multiplicity than the one of low-p T electrons. The measurement in p-Pb collisions shows no p T dependence within uncertainties. The self-normalised yields in pp and p-Pb collisions are compared with measurements of other heavy-flavour, light-flavour, and strange particles, and with Monte Carlo simulations. [Figure not available: see fulltext.] © 2023, The Author(s).}}, author = {{Acharya, S. and Basu, S. and Christiansen, P. and Hansen, J. and Iversen, K.E. and Matonoha, O. and Nassirpour, A.F. and Ohlson, A. and Silvermyr, D. and Staa, J. and Vislavicius, V. and Zurlo, N.}}, issn = {{1029-8479}}, keywords = {{Hadron-Hadron Scattering}}, language = {{eng}}, number = {{8}}, publisher = {{Springer}}, series = {{Journal of High Energy Physics}}, title = {{Inclusive and multiplicity dependent production of electrons from heavy-flavour hadron decays in pp and p-Pb collisions}}, url = {{http://dx.doi.org/10.1007/JHEP08(2023)006}}, doi = {{10.1007/JHEP08(2023)006}}, volume = {{2023}}, year = {{2023}}, }